Even allowing for the extreme problems surrounding freedom of speech, internet censorship would be more or less impossible. Governments can attempt to regulate what is produced in their own country but it would be impossible to regulate material from abroad. What is the point in the USA removing all domestic reference to hardcore pornography when it is possible to access material from the United Kingdom or Sweden? It is also possible for citizens to produce material and store it in an overseas domain further complicating the issue. True freedom of speech requires anonymity in some cases to protect the author, the governments who have introduced ID requirements for internet use also deny many basic rights to their citizens. The internet allows citizens to criticise their government and distribute news and information without reprisal from the state, such a system clearly could not survive with ID requirements.